My egg that hatched double yolk RIR twins Fiddle/Faddle. I'm noticing that although healthy fiddle hasn't grown much at all. While the siblings and the other one from the double yolk are growing feathers/size very fast fiddle is still slow like a new hatching, hardly any feathering out, and doesn't appear to have increased much in size since hatch. The hatch date was the 22nd with some a little before and after. These double yolks hatched on the 20th. Should this be a major concern that he is growing so slow? I'm thinking that I should remove this chick because the larger/faster chicks not so much pick at it, rather they step on it running back and forth.